The billionaire said in an interview with 60 minutes that aliens are real
He claimed there is an 'existing presence' of extraterrestrials on Earth
And the entrepeneur suggested he has spent 'more than anybody else in the US' on research into UFOs

A billionaire aerospace entrepreneur who has recently worked with Nasa has said he is 'absolutely convinced' that there are alien visitors living on Earth.

Robert Bigelow, whose company Bigelow Aerospace has built expandable space habitats for the ISS, was speaking in an interview with 60 minutes on Sunday.

The conversation focused on working with Nasa before it shifted to Mr Bigelow's reported obsession with aliens, as the mogul revealed he has invested 'millions' into UFO research.